Woody Woodpecker debuted in the 1940 Walter Lantz cartoon Knock Knock, and his trademark laugh quickly became as famous as the character himself. Originally voiced by Mel Blanc, the laugh was later performed by other actors but kept the same frantic rhythm. Decades of television reruns, compilations and meme edits kept the clip in circulation long after the original shorts. Today it survives online as a goofy yell style reaction, borrowed whenever a creator needs instant cartoon mischief without explaining the joke.